SiUS281811E
Error diagnosis of "Louver operation different from setting"
Part 6 Service Diagnosis
YES
Is the individual
airflow set?
NO
Is the
YES
airflow direction set to
automatic?
NO
Is the connection
YES
of the step motor
connector normal?
NO
Symptom-based Troubleshooting
Normal
Reset (Cancel)
individual airflow.
Is the
YES
automatic draft prevention
Normal
function "enabled"?
Automatic draft
prevention function
NO
switches flap to
horizontal position
when human
presence is detected.
Is the
YES
Replace the wire
wire harness
harness.
broken?
NO
Replace the step
motor. (Motor failure)
Connect to the
connector
correctly before
action verification.
173